Claims
- 1. A method for drilling and cementing a well comprising,
- preparing a universal fluid by admixing a well fluid or drilling mud with Portland cement and pozzolan;
- drilling a borehole with the universal fluid and laying down a settable filter cake on the walls of said borehole during drilling of the well; and
- activating the filter cake to harden and set up.
- 2. The method of claim 1 wherein the filter cake is activated with sodium silicate.
- 3. A method for drilling and cementing a well comprising,
- preparing a universal fluid by admixing a well fluid or drilling mud with Portland cement and blast furnace slag and pozzolan; drilling a borehole with
- drilling a borehole with the universal fluid and laying down a settable filter cake on the walls of said borehole during drilling of the well; and
- activating the filter cake to harden and set up.
- 4. The method of claim 3 wherein the filter cake is activated with sodium silicate or alkalies.
- 5. A method for drilling and cementing a well comprising,
- preparing a universal fluid by admixing a well fluid or drilling mud with Portland cement and blast furnace slag;
- drilling a borehole with the universal fluid and laying down a settable filter cake on the walls of said borehole during drilling of the well; and
- activating the filter cake to harden and set up.
- 6. The method of claim 5 wherein the filter cake is activated with sodium silicate or alkalies.
- 7. A method for drilling and cementing a well comprising,
- preparing a universal fluid by admixing a well fluid or drilling mud with blast furnace slag;
- drilling a borehole with the universal fluid and laying down a settable filter cake on the walls of said borehole during drilling of the well; and
- activating the filter cake to harden and set up.
- 8. The method of claim 7 wherein the filter cake is activated with sodium silicate, Portland cement or alkalies.
RELATED APPLICATIONS
This application is a continuation of application Ser. No. 886,533 filed May 20, 1992, abandoned, which is a continuation-in-part of application Ser. No. 751,399 filed Aug. 28, 1991, abandoned, and application Ser. No. 691,905 filed Apr. 26, 1991, abandoned. Application Ser. No. 751,399 is a division of application Ser. No. 671,627 filed Mar. 19, 1991, now U.S. Pat. No. 5,085,679, which is a continuation-in-part of application Ser. No. 641,794 filed Jan. 16, 1991, abandoned, which is a continuation-in-part of application Ser. No. 457,429 filed Dec. 27, 1989, abandoned.
US Referenced Citations (41)
Related Publications (1)
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Date |
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691905 |
Apr 1991 |
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Divisions (1)
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Number |
Date |
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671627 |
Mar 1991 |
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Continuations (1)
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Date |
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886533 |
May 1992 |
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Continuation in Parts (3)
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751399 |
Aug 1991 |
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641794 |
Jan 1991 |
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457429 |
Dec 1989 |
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